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Finding the Fourth Proportional to 1,352.38, 1,865.97 and 933.10

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Solution

The fourth proportional to 1,352.38, 1,865.97 and 933.10 is: 1,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.38 : 1,865.97 = 933.10 : x
  2. Step 2: Convert to fraction form
    1,352.38/1,865.97 = 933.10/x
  3. Step 3: Cross multiply
    1,352.38x = 1,865.97 × 933.10
  4. Step 4: Simplify right side
    1,352.38x = 1,741,136.61
  5. Step 5: Solve for x
    x = 1,741,136.61/1,352.38
  6. Step 6: Final answer
    x = 1,287.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.